update main.py debug user/admin change

main.py

@@ -578,7 +578,8 @@ async def health_check():
     return {"status": "healthy", "model_loaded": mlp_pipeline is not None, "database": os.path.exists(db_path)}
 
 # ================ STATIC FILES (SPA SUPPORT) ================
-
+FRONTEND_DIR = "dist" if os.path.exists("dist/index.html") else "static"
+assets_path = os.path.join(FRONTEND_DIR, "assets")
 # 1. Mount the assets folder (JS/CSS built by Vite/React)
 if os.path.exists("static/assets"):
     app.mount("/assets", StaticFiles(directory="static/assets"), name="assets")
@@ -591,8 +592,11 @@ async def serve_react_app(full_path: str, request: Request):
     if full_path.startswith("api") or full_path.startswith("ws"):
         raise HTTPException(status_code=404, detail="Not Found")
     
-    # Serve index.html for any other route
-    if os.path.exists("static/index.html"):
-        return FileResponse("static/index.html")
+    file_path = os.path.join(FRONTEND_DIR, full_path)
+    if os.path.isfile(file_path):
+        return FileResponse(file_path)
+    index_path = os.path.join(FRONTEND_DIR, "index.html")
+    if os.path.exists(index_path):
+        return FileResponse(index_path)
     else:
-        return {"message": "React app not found. Please run 'npm run build' and copy dist to static."}
+        return {"message": f"React app not found. Please run 'npm run build'."}